/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/AbilitySystemBlueprintLibrary.h
Returns the Gameplay Effect CDO from an active handle. This reference should be considered read only, but you can use it to read additional Gameplay Effect info, such as icon, description, etc.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="Ability|GameplayEffect") static const [UGameplayEffect](API\Plugins\GameplayAbilities\UGameplayEffect) * GetGameplayEffectFromActiveEffectHandle ( const [FActiveGameplayEffectHandle](API\Plugins\GameplayAbilities\FActiveGameplayEffectHandle) & ActiveHandle )